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Heading machine and main driving shaft end seal capable of monitoring temperature in real time

A main drive shaft, real-time monitoring technology, applied to the sealing of the engine, thermometer parts, thermometers, etc., can solve the problems of space confinement, wear and tear, and lack of high-reliability in-situ temperature measurement.

Active Publication Date: 2021-09-10
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to problems such as large load, airtight space, and severe wear at the main drive sealing interface of the roadheader, the current high-reliability in-situ temperature measurement of the main drive seal interface of the roadheader still lacks effective technical means

Method used

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  • Heading machine and main driving shaft end seal capable of monitoring temperature in real time
  • Heading machine and main driving shaft end seal capable of monitoring temperature in real time
  • Heading machine and main driving shaft end seal capable of monitoring temperature in real time

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Embodiment

[0042] refer to Figure 1 to Figure 3 The resistor chip 1 designed in the present invention includes a base layer 6, an adhesive layer 7, a sensitive layer 8 and a passivation layer 9, wherein the sensitive layer 8 includes a resistor strip 20 and a resistor strip pad 10, and the material of the passivation layer 9 can be aluminum oxide Or glass these insulating, corrosion-resistant materials. Both ends of the resistance strip 20 have resistance strip pads 10, and each resistance strip pad 10 is connected with a signal lead 5, one end of the signal lead 5 is connected to the resistance strip pad 10, and the other end passes through the package shell 2 of the sensor. The first through hole 21 and the second through hole 22 at the bottom are externally connected with a signal processing circuit. The resistor chip 1 is placed upside down horizontally inside the packaging shell 2 ( figure 1 The orientation shown is the situation where the resistor chip 1 is placed upright. fig...

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Abstract

The invention discloses a heading machine and a main driving shaft end seal capable of monitoring temperature in real time. The main driving shaft end seal comprises a main driving shaft, a dynamic sealing rubber ring and a temperature sensor, the dynamic sealing rubber ring sleeves the main driving shaft, a mounting hole is formed in a contact interface of the main driving shaft and the dynamic sealing rubber ring. The temperature sensor is arranged in the mounting hole, the surface of the temperature sensor is in direct contact with the dynamic sealing rubber ring, and an elastic structure used for supporting the temperature sensor and enabling the temperature sensor to keep contact with the dynamic sealing rubber ring is further arranged in the mounting hole, so that online in-situ monitoring of the temperature at the contact interface of the dynamic sealing rubber ring and the main driving shaft can be realized; and the measurement precision is improved. The elastic structure can elastically support the temperature sensor, can reduce the stress between the contact surfaces of the temperature sensor and the dynamic sealing rubber ring, can reduce the wear and impact on the temperature sensor, and improves the service life and reliability of the temperature sensor.

Description

technical field [0001] The invention belongs to the technical field of roadheaders, and in particular relates to a roadheader and a main drive shaft end seal capable of real-time monitoring of temperature. Background technique [0002] Tunnel boring machine is a large-scale mechanical equipment used for tunnel excavation, which has the advantages of fast excavation, high safety and low labor intensity. With the large-scale construction of China's infrastructure, roadheaders have been widely used in tunnel projects such as highways, hydropower, and urban subways. Among them, the main drive is a core component of the roadheader, and the sealing failure caused by the high working temperature of the seal is one of the most important factors that reduce the service life of the main drive. However, due to problems such as large load, airtight space, and serious wear at the main drive sealing interface of the roadheader, the current high-reliability in-situ temperature measurement...

Claims

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Application Information

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IPC IPC(8): F16J15/32F16J15/3268F16J15/3284F16J15/10F16F15/08G01K1/14H01C1/012H01C1/08
CPCF16J15/32F16J15/3268F16J15/3284F16J15/10F16F15/08G01K1/14H01C1/012H01C1/08
Inventor 罗国希陈科周文科张乾坤赵立波蒋庄德
Owner XI AN JIAOTONG UNIV
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